Wellp, looks like Comet Ison is likely dead. Disappointing since I was looking forward to watching it myself after sunset. It was only visible before sunrise previously. As of right now, astronomers haven’t completely ruled out that it is intact, but I am not getting my hopes up.
If you tried catching the recent comet Ison in the night sky, it is too late. I is now in the sun’s glare. But, there will be a second chance after it swings around the sun in November 28. You will be able to see it in a more convenient time, after sunset, I think. Before you had to get up really early to see it before the sun rises. Anyways, keep checking astronomy news and the charts. Also, check if the comet survives the trip around the sun, as it goes really close to the sun, and there is a possibility it might break up. If you do see it eventually, though, enjoy!
In the last three posts, I talked about paths that minimize time. In all those cases, it involves objects going through a path and minimizing certain quantities. But is there a single equation that covers all physical situations that involve finding the path that minimizes quantity? The answer is yes, and it is called the Euler Lagrange equation. Read the rest of this entry »
If you know calculus and the gamma function, you might as well use it to try and learn to get the volume of an n-sphere:
This Earth sized planet is really close to its star, completing an orbit in 8.5 hours. It is so hot that its surface is probably melted. Its density shows it is similar in composition to planet Earth, so it probably has an iron core wrapped with rock. How it got so close, scientists are trying to figure out, since the various scenarios they have in mind doesn’t seem to be adequate. More details here. If only I could get behind the paywall for the studies. *sigh*
Aw, the first run of the new dark matter detector LUX was a disappointment. Alas, that is how science goes. Sometimes, you find nothing. It still has over two years to go, though, so my fingers are crossed for something to be found. And no, even if no WIMP (the dark matter candidate) is found, MOND is not it. The Bullet Cluster shot that theory dead and it is now a corpse in the graveyard of scientific ideas.